Race track timing device



Oct. 7, 1952 l. M. MALoTT ETAL RACE TRACK TIMING DEVICE 4 Sheets-Sheet l Filed July 14, 1948 waz. N

Och 7, 1952 Y l. M. MALoTT ETAL 2,612,948

RACE TRACK TIMING DEVICE Filed July 14, 1948 4 Sheets-Sheet Z INVENTORS.

/RA M. MALorT 'BY HERBERT R. CRAWFORD Oct. 7, 1952 l. M. MALoTrAr-:rAL 2,512,948

RACE TRACK TIMING DEVICE Filed July 14, 1948 4 Sheets-Sheet 5 IN VEN TORS. /RA M. MALorr HERBERT A. CRAWFORD www?.

Oct. 7, 1952 l. M. MALOTT Erm.

RACE TRACK TIMING DEVICE Filed July 14, 1948 4 Sheets-Sheet 4 [S l l 1 INVENToRs.

IRA M. MALoTT rl? CRAWFORD p IBY HERBER j RQ P lseconds of elapsed time.

'atented ct. 7, 1952 RACE TRACK TIMING DEVICE Ira M. Malott, Louisville, Ky., and Herbert s R. Crawford, Cincinnati, Ohio Application July 14, 1948, SerialNo. 38,706 s This invention relates to a device for timing racesl and more particularly relates to an electrical device foraccurate and automatic timing of races. e

.An object of this invention is to provide a timing device which, bymeans of electrical circuits, can accurately time a race. l l

A further object of this invention is to provide a device capable of automatically recording the time of parts of a race.

A further object of this invention is to provide an automatic timing device suitable for use with a starting gate of. the type which is advanced `along a. race track aheadof a start. i

A further object` o'f this invention is to provide `a timing device suitable for` use lwith races of ,varying lengths. i

. Theabove mentioned and other objects may be attained by `the device described herein and yillustrated. in the accompanying drawings, in

which:

Figure 1 is a schematicview showing the electrical circuit of a timingdevice constructed in accordance with this invention.

Figure 2 is a front elevational View showing a clock suitable for use with the timing device of this invention.

i Figure 3 is a schematic plan view of` a horse `racing track` showing the location otlights and photoelectric cells of the timing device.`

Figure 4 is a front elevational view of a control panel for the timing device, schematically i shown.

Figure 5 isa schematic View showing further electrical circuits of the timing device.

Brieiiy, the present invention provides a timing device which is actuated by photoelectric cells. The device is particularly adapted for i use in timing trotting and pacing races in which it is desirable to know the time at various distances along the track and to have an exact infdication of the time for a race. Photoelectric cells and appropriate electrical circuits asso- `ciated therewith are located at selected points on the track.v A clock or several clocks are mounted for ready view, and each clock may have a hand for" recording minutes and a pair of hands for recording seconds and fractions of One of the `second hands mayfmove continuously during a race. while the other second hand may be halted as the horses pass each of several selected points. A` series of relays is provided at the finish line which can start the clocks as horses pass the line and stop the clocks asthe horses pass the finish line` for a iinal time.` `If the horses are to pass the iinsh line `several times, the mechanism permits theA clocks Yto continue running until the final time. i At the starting line a circuitmay be provided to permit a starting gate to pass the starting line before the clocks can be started. Alternate starting mechanisms may be provided at each of several points about the track. After Athe starting gate has passed the selected startingline, the passing of a horse `across the starte ing linemay automatically startthe'clocks, and

the clocks may be stopped automatically as the i iirst horse time.

Referring now to the` drawings and to Figures l and 5 which illustrate the electrical circuit of a device constructed in accordance with this invention, current to operate the device, which passes the finish line for the final may be alternating `current of any "suitable voltage and frequency,V may be introduced through two main power leads I0 and I2. The leads I0 and I2 may circle the track to supply power to all the various lights, photoelectric cells, relays, and the likel whichA form ya part of the device. For ease in reference, the circuit ofthe device has beenydivided into a number of sections having different functions. `The device shown is.` designed for use on a half-mile track for timing races `of nine-sixteenths mile, one mile, and a `miley and one-sixteenth, but the device is readily adaptable for use on tracks of different sizes for timing races A of various lengths. A selector switch I3 may be positioned to put the device in proper condition for timing a race of the selected length. The device may include a relay circuitr I 4 for operating the main circuit of clocks I6. `The clocks I6, as shown, are mounted in parallel. Three clocks have been shown. but more clocks may be used, if desired, to provide clocks which can readily be observed from any desired point. `During timing of a mile race, a

,circuit II including photoelectric cells I8 and associated electrical circuits together with a relay circuitIS may control the relays ofthecir- ,cuit I4. Onthe other hand, for races of ninesixteenths mile and` a mile and one-sixteenth, a circuit 2l!l is employed to controlthe relays in the circuit I4. `A `circuit 2| can set the circuit `I1 into action upon the passage of the starting gate by the startin'gpoint for a mile race.` while a similar circuit 22 `canset the circuit I4 into operation upon `passage of the starting gate" across the starting line, for a nine-sixteenths mileA and a mile and one-sixteenth race.` i i At the one-eighth mile, one-quarter mile, and

3 three-eighths mile points respectively may be cated photoelectric cell actuated timing circuits 23, 24, and 26, each of which may be constructed to stop a sweep second hand of each of the clocks I5, as the horses pass each point. As the horses pass the finish line, the main circuit to the clocks i5 may be broken by the relays in the circuit I4.

Each of the clocks I6 may have a face and hands as shown in Figure 2. The clock I may include an inner dial 21 calibrated in minutes and an outer dial 23 calibrated in seconds and fractions of a second. A minute hand 3| and a for a sufficient time to be observed and then may f be reset in alignment with the second' hand 32' before the horses pass the next timing point.

The operating mechanism of the clocks is not `shown or described` in detail as it does not form an essential feature of the invention, and the operating mechanism of the clocks may be Yconventional.

' .The circuits, which have been described above 'only in general terms, will now be described in more detail.

The selector switch I3.may includethree layers.

Acentral layer may connect the main power A lead is with either the one miie Circuit n and `relays 5,9- or alternately the nine-sixteenths and mile and one-sixteenth circuit 2U. A lower layer 37 of the selector switch I3 may connect the mainl power lead I El with the mile starting circuit 2,! :when the mile circuit I1 and relays I9 are connected or` may connect the main power lead Hlwith the starting circuit 22 when the ninesixteenths mile land one mile and one-sixteenth circuit25 is connected. An upper layer 38 of the switchA I3 may light signal lamps 39, 39a, and 39h to indicate which of the circuits may be connected. Power is supplied tothe layer 3-8 of the Switch and to the signal lamps by a transformer 4I. mounted across the main power leads I0 and I 2g. yAsshown in the drawings, when the selector switch i3 is turned tothe left, the circuits are connected Hfor the timing of a` nine-sixteenths mile race and the left-.handsignal lamp 39' is lighted,v when the switch is centrally positioned, the; circuits are connected for the timing of a one mile race and the central signal lamp 39a is lighted, and when thel switch is turned to the right, the circuits are connected iorthe timing of a, lmile and one-sixteenth race and the signal istrip 'est is lighted. p,

A number of photoelectric; cells are shown in the drawings and arevused for recordingthe time of'passage of horses by various starting, timing, and nish points. With each photoelectric` cell is associated a conventional. circuit for amplify'- ing and transmit-ting an electrical impulse as a change occurs in .thefamount of light received by each photoelectric cell. Foriexample, each of the cells I3 is equipped with appropriate xed resistancesA 42, and 431, a Vvariable resistance 44, al transformer 4G, anda vacuum tube 41r to induoea current in a lead 48V connected` to the plate of the tube l. 'The current in the lead 48 is changed upon a change in the intensity of light reaching the cell I8; Each photoelectric cell is equipped with a suitable substantially similar circuit, andfor simplicity other photoelectric cell circuits will not be describedv in detail.'

One mile race start and finish timing mechanism When the switch i3 is centrally positioned for timing a one mile race, one side of the coil of a normally open relay 45, rin the circuit I9, is connected to the main power lead I0. The other side of the coil of the relay 49 is connected to the main power lead I2, and, when the switch `I3 is centrally positioned, the relay 49 is closed. In addition, rwhenthe switch I3 is centrally positioned, a lead 55 `is, connected to thel main power lead ill. The lead 5t is connected to one side of the circuit of a photoelectric cell 5I in the circuit 2i. The other side of the circuit of the cell 5I is connected to the main power lead I2 by a lead 52, and,r when the switch I3 is centrally positioned, the'circuit of the cell V5I is energized. A lamp 53 connected between the main power leads lil and i2 supplies a light beam for the cell 5I. When the beam of light between the lamp 53 and the cell 5I is broken, current in a, plate lead 54 is changed.

The lead 5.4 is attached to one side of the coil of a normally open latch type relay 55. The other side of the coil of the relay 55 is connected to the main power lead I2 by the lead 52, and the relay 5tA closes when the beam of `light between the lamp 53 and the cell5l isbroken.

Closing of the relay 5B completes a circuit between an anode of a photoelectric cell 58 yand a resistance 55 in the circuit of the cell 58. Opposite sides of ther circuit of the cell' 58 maybe connected continuously to the main power leads Il and I2. A lamp. Eil, attached across the. main power leads it and l2, can supply a light beam for the cell 58. When the light beam .strikes the cell 58 after the relay 55 has beenv closed, current in a plate lead 6l may be changed.` The. lead 6I is attached to one side of. the coil of at normally closed latch type relay 62. .The other side of the coil of the relay 62 is attached to the main power lead Eil. When, in sequence, the beam of light to the cell 5I is cut off and the beam of` light from the lamp 55 strikes the cell 58', the relay 62 may be opened.

As long as the relay 52 is closed, one end of a leadk iiv is attached, through the relay 52, to the main power lead i2. The other end 'ofi the lead 5.3, is attached to aside of the coil of a normally closed relay 54 in the .circuit I9: The other side of the coil of the relay 54 is attached to the main power lead IG. As long asthev re-v lay 62 remains closed, current can flow through the coil of the relay 654 to hold it open. However, when the relay 52 isopened, the relay G can close toconnecta lead 5.5 to the mainv power lead l2. f f

The. cells 5I and 58f and their.. associated circuit and: relays, all vof which make up' the circuit 2|, make provision. for setting the timing mechanism into operation upon the passage of a, starting gate ahead of the .horses at the start ofa race. Until the starting gate has passed the cells 5I and 58, the relay 54 can remain open. Only after'the starting gate has passed they cells 5t. and 58, to break the light beaml to the cell 5Iy and then permit light to hit the/cell'` 58., does the relay 64 close. Closing of the relay 64: connects the lead 65 tothe main power lead I2V to provide power for the relay circuits I4 and I9.

The 'photoelectric cells I8 are located at` the finish line, which is also the starting line fora mile race. The cells I8 may be mounted in a verticalrow, one above the other, to providel cells at various levels. The circuits of theY cells .I8 areconnected in. parallel,y and the platey lead 48 cells |8.

'from the circuit of eachof the cells I8 ls con` nested to a commonlead 68. Lamps 692, mounted acrossy the main power leads I and` |2 are provided to` direct; a light beam toward each of -the cells I8. Thenumber offlfthe `lampsiIS may be same` ascthe number of the vcells .|8, and. the.

lamps 60 may be mounted in a verticalfrow, one

asias@ the sweeprsecond hands 33 ,of the clocks I6. The

sweep v.second hands 3` are controlled by a circuit which` includes leads 80.and 8| attached to lthe clocks I5@ .The lead 80 may be connected inseries with the aforementioned normally closed `leafof the relay .12,a lead `83, a` normally closed leafyofwthe relay 13, a leadl8,4a normally closed above the other to provide a series of parallel, e

substantially horizontal beams acrossthe finish line. If desired, additionalcells and lampsmay be provided to ensure a light beamat' proper height to'be broken by the nose of a horseas it passes 'the `nish line. e

e l `As the nose ofa horse breaks the beam of light to one of the cells I8, current in the lead 68 may be changed. The lead B8 is attachedtoa side of the coil of each of three relays 1|, 12, and

13, which are in the. Circuits la and. |41

` The relay'll is la main' starting relly#V "Itmay be of a latch typeand may include one normally closed leaf and two normally open leaves. Ais long as the relays 49 andlill` are closed,.the other leaf: of a relay 8B, andl the main power lead I2. :lead 8| -may- `be connected series witha normally closed leaf of fa relay ll'l,l a4 lead .80, aonormally closedleafof` a `relay 89, a lead 9|,fand `the main power-line l0. When any one @time reia'ysiz, 1a, as,.s1, and se is actuated,

the circuit through thefleads 80 `andill `maybe broken the l sweep. second `hands 33 may be stoppledl Thus, `whenthe -relaye'l2 is actuated side of the coil of the relay 1I may be connected to the main power lead I2` through the normally closed leaf of the relay 1|.. When, at the start of the race, a horse passes thecells i I8, thecurrent in the lead 68 may be changed to actuv ate the relay 1|, to open the normally closed leaf and close the normally open leaves `or the relay 1|. l removes the load of the relay 1| from the"plate circuit of the cells I8.

Closing ofthe normally open leaves connectsv leads 14 and 16 tothe main power line I0. The

lead 'I4 is attached to a side of a thermal .time

delay relay 1l. The other side of the time delay relay 'l1 is attached tothe main power lead I2, and, a selected time interval after the start of Opening of ,the normally closedleaf` time, fthe by'horses passingthe finish* line for` asecond e sweep second, hands 3,3` of theclocks areStopped-` if 1 Thanfor allyopenleaf ofthe Vrelay 12, when closed, may light a lamp 92 rat the finish line indicate that the time shown by the sweep` second hands a3 (of the' clocks is is the time of passing therkfinishline the secondtime, i. e.for the hall mile. f l Qne side of the .lamp 92 `maybe attached to the main power `lead I0, .whilethe other side `ofthe lamp 92 maybe attached, `through a lead Bland 'the normally openlleaf of the relay` 12,

to th'emainrpower lead I2, and the lamp 92 may be illuminated upon actuation of the relay 12,

`When the horsesv pass` thegnish line for; the

` last" time `before' the finishofthe'race a double .l pole single throw switch 94 may beengaged to the race, the relay `'l'l can close. .The length of l mit allhorses to uponactuation of the relay 1|, theclocks I6 are set in operation, and the clocks |6 can operate until the relay 'His-actuated. l

When the time delay relay 11 closes, a selected time after actuation of the relay 1|, a lead 18 is connected to the lead E6. As already' pointed out, the lead 06 is connected to the main power lead i2 as long as the relay 64 remains closed. Thus,` theilead 'I8 may be connected to the main power lead |'2 through the lead 66.

The relay 'l2 may be a latch type relay hay-` ing three leaves, two of which may be normally closed and one of which may be normally open. The lead 18 may be attached, through one of the normally closed leaves, to a side of the coil of therelay 12. Theother side of the coil of` therelay 1.2, as already pointed out, is attached to thelead 68, which carries plate current from the circuits` ofr the cells |8.`` `When, subsequent to operation of the time delay relay "ll, a horse passes between the cells I8 andthe lamps 69, the relay l2 may be actuated. Actuation of the relay 'I2 opensthe normally closed leaf connected to the coil of the. relay to remove the lead of the relay fromothe plate circuit of the The other normally closed leaf of the relay 12 is connected in series in a circuit forcontrolling connect lleads Slt` and 98` tothe main power lead I0..` .The lead 96 ,maybe connected to one side olla release `coil 99 for the relay '|2.` Theo-ther f sidelof ,the` coil Ellis attached tothemain power lea'dlnIZ. The lead 98 isattached to a side of the .coilof a thermal time delay relay |0I. rlhe other side` ofthe coil Aofuthe.e1-clay` |0| is attachedto the mainA power lead |,2. Upon engagement-of the switch. B4, the relay 121s released ytoextin guishethe lamp` 92 and restorethetcircut tothe sweep secondhands 33 `of thecloclssA IB. At the same time, the thermal delay relay|0| starts` to :functionl and after a sufficient time. delay to pere o e pass the nish line, the relay lelmayengage.

When'the relay 10| is engaged, a side of the coil of the relay .|3 is attachedV to the lead `IiB.

-The relay 'I3 isla finish line relay.` It may be of a latch `type having. two normally closed leaves and a normally open leaf. e The other side of the coil of the relay 7,3, as already pointed out, is attached to the lead 68, which carries plate current from the circuit ofthe cells I8. When the first horse passes the finish line for the final time, the relay '|3is actuated. A lead |02 may be linked to the main power lead I2 when the nor-f mally openleaf is closed. The lead |02 is `at.` tached to a side of an illuminated sign |03, shown schematically, which may `belighted at the finish of the race. The other side of the sign |03 is at`` tached to `the main power line` I0, and the finish sign |03 may he lighted upon actuation of the relay'13. ,e i y As already pointed out, one of the normally closed leaves of the relay 'I3 is attached in lseries with the main clock circuit and the other normally closed leaf is connected in series .withthe sweep second circuit. The lead 16 ofi-the main clock circuit joins a normally open leaf of. the relay '|I and a normally closed leaf of the relay'l3.v When both these leaves are closed, after actuation cftherrelay 1| and before actuation atie-,erts

of the relay 13, the lead 16l maybe connected to the main power lead I0 through the relay `1|, and also-may be connected toa lead |64 through the relay` 13. The lead |045, in turn, isy attached tc a-A side of the main circuit of each of the clocks `||tv-The other side ofthe main circuit of each of'rthe clocks is attached to a lead- |95, which lead |65 is attachedto the main power lead I2. Only" after the inain starting relay. 1| has been actuated andvbefore the iinish relay 13`is actuated do theA clocks IS- operate. Upon actuation Af vthe relay 13, both theV main circuit of the clocks i6 and the sweep second circuit ol the clocks IG are stopped'a'nd thenish signA |03 is illuminated to indicate the iinish of a race.

Y After the iinish of a race, the various 'relays and''clocks must be reset before anew race can bef'started. A release coil IDB is provided for releasing the finish relay 13. The release" coil 1061 may' be energized upon-the closing of a push button |01?. One side of the coil |06 is attached tofthe main power lead l2, and the othery sideof th'ic'oil is attached to aside of the push button vI'B l The other side ofthe push button is atached tothe main power lead It. Uponv closing 'of the'push button'y |01, the release coill I may be energized to `release the latch of the relay 13. A- releasecoil IBB-serves to releaseY the main starting relay'l. A side of the releasev coil |08 is attachedfto the main power lead I2; The other sidevof` the releasecoil |98v is attached to a'sideof the-'push button we. The other. side of ofthe track I 25 at and near the nish line-|32,

indicated by a dotted line, between the cells I8 land the lamps 63. The cells It and lamps 69 may be located en opposite sidesof the track |245. The

cell 58 may be located ay short distance, forex-- ample a foot, along the track beyond the finish line'l32 and cells IS', and the lamp 60 may be y distance but should not be as thefpush button IUE! is attached tothe Amain f power lead It'.k When the push button I |39 is closed; the latch i'therelay 1| maybe released. l A clock reset circuit is'actuated by a4 push button |12'. One `side of the push button I I2 is attachedltothe mainpower leadA I2. The other side of the push' button H2 is attached kto a lead |13; which lead II 3 is attached to resetting mechanism'of' the clocks, not'vshown in detail. The other side of' the clock resetting` vmechanism is attached,l bymeans of a leadIIIl, to the main power line It.^ Upon closing of the push button 2, allthe clocks may be reset. y

AV gate release push button IIS provides for resettingthe circuit 2| prior to the start of a L race. kOne side of the push button I If'is attached tothev main power lead I0, whilejth-e'jother side oflthe push button IIE is attached'bymeans of a lead H1, toa side'of each of two relay release eoils |8" and iid; provided for releasing the re'- l'ays tty and .62 respectively. VThe other side of ea'cl' of Ithe-nelease`V coils H8 and I-I9 is 'attached tolthe main power lead I2. When the 'push but f tn H6` is closed, both'the relay 5t and the reflay56-2may bereleased.'

Provision isI made for preventing ypremature operation of oneof the relays of the-circuits' lli and I9 by a ballring horse which may refuse to proceed with the'rest of the horses. Abalk push but-'ton |2| isprovided, whichcan disconnect the lead'BG/from the'mairl power lead I2 if a balking' horse interferes at the starting line. One' side'of the balk push button |2| is attached to themain power lead I2. The other side of the balk push buttonv |2| isV attached to the lead 63? When the push button I2 l is closed, the relay Stiopens, and afbalking horse cannot cause prematurey actuat'ionkofV the relay 12 or ofV` the relay 13.

"For better understanding'of the timing' dei/ice as used for timing the start and finishY of a one milel race,y reference is made to Figure 13'. In Figure 3, a horse racing track is indicated schemati-A calli,Y 'at |25. A truck |26 or the like carries a located anequal distancejalong the track |25 beyond the finish line |32 and on the opposite side of the track from the c ell 58. The distance between the finish line: |32 `andthe lamp {fand' cell 58 may bejust suiiicient to permit' the truck |26 and gate' |21 to pass between the lamp Si! and the cell '58 before a horse passes the finish line |32' for the rst time. The lamp 53 and' cell 5| may be located a convenient short distance along the track |25 beyond the lamp SQ- and the cell 58 and'o'n opposite sides ofthe track. The' distance between the cells Esahd 5| and tie distance between the lamps SEB and t3 may be any suitable great' asthe eiective length of the truck |26.

Nine-sitcenths vmile race start and finish timing" mechanism When the selector' switch i3 is positioned to the left, the device may be used to time a race for nine-sixteenths` of a mile, and when the switch I3 is positioned to the right, the device `may be used to time a race for a mile and onesixteenth. For timing the start of theseV races, the circuits 20 and 22 are employed.` For timing a race for ninesixteenths of a mile, the switch I3 is positioned to the leftto illuminate the lamp 39 and to connect leads |35 and vIlw'itirthe main power lead IU,

y The lead |36 is attached to a side of the circuit of aphotoelectric cell |31, which is in the circuit 22. A lamp |38, connected between the main power leads Ill and I2,`supplies a light beam foi` the cell |31. When the light beam between the lamp1|38 and the cell |31 is broken, current-in a plate lead it ofthe circuit of the cell |31 may be changed. The plate lead |39 is attached toa side of the coil of .a normally open latch type relay MI. The other side of the coil of the relay IM is attached tothe main power lead I2'. When the light beam between the lamp I 38 and the cell |31 is broken, therela'y lfiI closes.v

Closing of the relay y11M completes a circuit y between the anode of a photoelectric cell I 42 and avresistance |113v in the circuit of the cell |42. Op`Yl posite sides of the circuitI of the cell H32 are continuously connnected to themain power leads I0 and I2. A lamp 1M attached across the'maln power leads Id and l2 supplies v'a light beam for the een M2. when the iight beam strikes theeeii |42, after the relay I4| has been closed, current in a plate lead MG of the circuit of the cell |42 is changed. The leadfeis attached to one side of the coil of a normally closed latch type relay |41. The other side of the coil of the relay |41 is attached to the main power lead I8. When the current in the plate lead Ilit is changed in re` sponse to light from the lampv |44 striking the 9. cell'l42, the relay'I41 may be opened. `Opening `of therelay |41 disconnects a lead |48 fromthe main power lead I2. The leadA |48 is attached to a side of thecoil of afnormally closed relay |49, whichis in the circuit 2,0. The otherside ofthe coil ofthe relay |49 is attached to the main power lead I0, and, as long as the relay |41 is closed, the relay |49 is held open. A lead I5|fis connected to the main power lead I when the relay |49 is closed. The relays, cells, etc.`of the circuit 22 perform the same function at the start of a nine-sixteenths mile race as. does the circuit 2 I at the start of a mile race to permit initiation of the timing mechanism only after the starting gate has crossed thestarting line.

The lead |35 which, as already pointed out, is connected to themain power lead I0 when the switch I3 is positioned to the lleft, is attached to a side of the coil of a two leaf normally open relay |52. YThe other side of the coil of the relay |52- is attached to the main power lead I2, and the relay |52 is closed when the switch |3 is positioned to the left. When both the relay |49 and the relay 52 are closed, a lead |53 is connected through the relays |52 .andl |49 and the lead |5| to the main power lead I0. The lead |53 is connected to a normally closed leaf of a relay I 54.

The relay |54 is a main starting relay for a nine-sixteenth mile race and may be of a latch type and may have twonormally open leaves and one normally closed leaf. One side of the coil ofthe relay |54 is attached to the normally closed leaf of the relay |54. The other side of the coil ofthe relay |54 is attached to a lead |56 which is` aplate lead from a bank `|51 of photoelectric cells |58. Each of the cells |58 has associated with it` an appropriate circuit for producing a change of current in the plate lead |56 when the light to oneof the cells |58 is cut off. The circuit of eachfof the cells I 58 may be essentially similar tothe circuit of each of the cells I8 at the finish line. With each of the cells |58 is associated a lamp |59 which can directa `beam of light toward one of the cells 58.

The cells |58 and the lamps |59 may be on opposite sides of the track at the starting line |6| for a nine-sixteenths mile or for a mile and one-sixteenth race, as shown in Figure 3. The cells |58 and `the lamps |59 may be mounted in vertical banks, a lamp |59 opposite each cell |58 on opposite sides of the track |25. Three cells |58 and `three lamps |59 are shown but additional similar lamps and cells may be added, if desired, to ensure breakingof a beam `by the nose of a horse as it passes the starting line I5|. The cell |42and the lamp |44 may, as shown, be mounted on opposite sides ofthe trackla short distance along the tr-ack beyond the starting line |6|, the distance being only sufcient to permit the starting gate |21 to pass the `beam of light between the lamp |44 and the cell |42 before the rst horse crosses the starting linelBI. The lamp |30 and cell |31 may be mounted on opposite sides of the track a suitable distance further down the track but a distance from the lamp |44 and the cell |42 which is less than the length of the truck |26.

v When a horse passes the starting line |6|, after the beam of light to the cell |31 has been broken and a beam'of light has struck the cell |42 in sequence,`the beam of light between one of the lamps |59 and one of the cells |58 may be broken to change the current in the lead |56 (Figure 1). The lead use is attached to a side of` the con of the relay |54. The other side of the coil of lthe relay 154115 attached io to the normally closed leaf of the relay, and, as alreadypointed out, this leaf, when closed, connectsv the other side of the coil with the lead |53 which, through therelays |49 and |52 and the lead I5I, is connected to the main power lead l0. When the light beam to one of the cells |58 is broken, the relay |54 may be actuated- When the relay |54 is actuated, the normally closed leaf is opened to disconnect the `coil of the relay from the main power lead I0 and remove the load of the relay`|54 from the plate lead |56. At the same time, the normally open leaves-close to connect leads |62 and |63 to the main power lead I0. The lead |62 is attached through the lead 98 to a siderof `the coil of the thermal time delay relay |0| in the cir-` cuit |4. As already pointed out, the other side of the relay |0| is attached to the main power lead I2, so that the relay |0| may close a predetermined time after the start of the race to energize the main nish relay 13 after the horses have passed the finish line for the first time.. The lead |63 is connected through a normally open leaf of the relay |52, the lead 16, and` a normally closed leaf of the relay 13 to the lead |04, which, as already pointed out, is on one side of the main starting and stopping circuit of the clocks I6, and the clocks I6 may be started upon actuation ofv the relay |54.

Once a` nine-sixteenths mile race has started, the clocks` I6 can continue in operation until the main finish relay 13 operates to break the main clock circuits by disconnecting the lead |04 from the lead 16. After the start of a race, the circuits 20 and 22 have no further operation. When the horses pass the nish line for the first time, the finish line circuits I4, I1, |9, and 2| donot function, and the thermal time delay relay |0| may be set at a delay to close only after the horses have passed the finish line for the first time but before they can pass for the `second time, for example a time thirty seconds after the start. When the first horse passes the finish'line for the second time, the relay I0| can have closed to attach the lead 66 to one side "of the coil of the relay 13. As already pointed out,` the lead 66 is connected to the main power lead I2 through the normally closed relay 64, and thus the side of the relay 13 may be` attached to the main power lead l2 as long as the relays 64 and |0| are closed.

The relays 1| and 12`may be unaffected at the finish of a nine-sixteenths mile race because the relay 49, which energizes the relay 1I, and the thermal time delay relay 11,` which energizes the relay 12, are not closed.

In the event that it is desired to prevent the functioning of-the relays |54 as soon as a horse can pass the nine-sixteenths mile starting point, a nine-sixteenths mile and mile and one-sixteenth balk button |55 may be closed; The push button |65 can connect the main power lead I2 with the lead |48 which, as already pointed out, is attached to a side of the relay |49. The other side of the relay |49 is attached to the main power lead I0, and `when the push button |65 is closed, the relay |49 is opened to disconnect the lead |5| from the main power lead |0.

A gate release button |61 may be provided for resetting the relays I4| and |41 in the circuit When the push button |51 is closed, the main power lead I isconnecteol to a lead |68, whichlead It' is connected Vto a side ci each of two release coils- |53 and |1| associated Vrespectively withv the relaysmldl and' |41. The other slee of efe-coef the. ,Coos we and 'Hl 1S @recreo tothe main power'lead I 2 and both ofthe relays |41 and |47 may be released and Vreset by clos ing the push button |51.

A nine-sixteenths mile release button |12 servestol energize'a release coil |13 associated with the relay |1514 The rush botto]o il? ooonects one side of the coil |13 with the main power lead I0. The other'side of the coil |13 is attached to themain power lead l2, and the relay VtheInain'power lead lll'with the lead |36 and kWith al lead |14.

The ylead |14 is attached to a sideiof the coil of a two leaf normallyopen relay |16. The other side of the coil of the relay |16 is connected to the main power lead I2,r and the relay |16 is closed whenl the switch I3 is positioned to the right. The circuit 22 is energized through the lead |36 in the saine manner "as described with reference to a nine-sixteenths mile race.

When a race of a mile and one-sixteenth is to start, the cells |31 andV |42 may operate in sequence in the manneralready described in con nection .with the start of a nine-sixteenths mile race to permit the relay |43 to close connecting the' lead |5| to the main power lead Iii. The lead 15| is connected through a leaf of the relay I'Ib to a lead |11, which lead |11 is attached to a side of a'normally closed leaf of a relay |13.

The relay |18 is a main starting relay fora mileiand'oneesixteenth race. The other side of the aforementioned normally closed leaf of the relay |18 is attached to a side of the coil of the relay |13, and the other side of the coil of the relay |18 is attached to the plate lead |55 of the circuits of the cells |58v so that when the relays |16 and |49 are closed, the relay |18 may be actuated as the beam of light to one of the cells |58 is, broken.

The relay |18 may be a latch type relay having the one normally closed leaf already described and two normally open leaves. When the relay |18 is actuated, the normally open leaves of the relay close to connect the main powerlead Iii to leads |19 and ISI and at the saine Atime the normally closed leaf opens to .remove theload/of the relay |18 from the plate oreot- "The lead |19 is connected through the lead 1d vto-a side of the coil of the thermal time delay relay 11Min" the circuit lil. The other side of the coil of. 'the thermaltirne delay relay 11 is attached to the main power. lead I2, and the relay 11 may be set in operation with a sufficient delay to permit thelho'rses to proceed past the nnish line forthe'rst time before the relay 11 closes,

for examplel seconds after the start of a race. After the relay 11 has been set in operation, the timing of the race at the finish line can proceed in the manner described connection with a one milev race, and the relays 1 2, |131, and 13 and 12 the owiioh .9.4 .may foootlorl le the manner already described.

Tooled le' @cached mourra leaffof, ce'

rele-,y ll, the leed weer@ o normally oloeeo leef of the .relay l3- to the leed |04 to Start elle eloelee. Iii when the relay |13 is closed.

The Duell button lo?. Ceo be veeel to protect ootvotloo of the .relay .|18 upon lefealoe'ol a' light boem to one of the oelle |58, if desired., afnemer' Similar to that described .lo oono o.- lSlolo, with o nloefelxteeothe .mile roee The yo ,n button. let een .energize the relay MS. to breek the Contact betweorlfthe ,lood |51 and elle room power leed l@ to out off ,the sewer Supply for the, Coll of the relay il@ Preventing activation of the 1eley |18 oelooe as .the poeh button iti is eloeea i' The gate release bottom Uil loe reed the eri'd ofV fo folle and ooefelxieeotll rooe to release Y the.' ,relays 14! lfl the come meneer as deooflbed with relation to o ,aille-olboeelllo mile.

poeh button il? Servos lo ootoate o release ool life ,associated with the rrelay Ilo @ne ,Side Of. the Duell button |32 lo otter/lied, to the .melo power lead .lo were they other ,side or the push button |82 is attached to a side of the release coil lill. The other lside of the `coil |83 is vattached to the main power lead I2, and the coil |33 may be-energized'when the push button |32 is closed to release and reset the relay |18.

Timely of ore-eighth. @coffre/oefen and threeoeigllillo milo positions A t points rone-eighth mile, one-quarter mile,

` and threere'ighths mile fromk the s tartingline |32 (Fig-ure 3) maybe located devices for recording the'time of the race at these points, and the circuits 23, 24, and 2B may be actuated as the horses pass points located respectively one-eighth mile, one-quarter mile, and three-eghths mile from the star-ting, line |32. The relays 86,y 89, and 31, located respectively in the circuits 23, 24, and, are connected in series between leads and II in a circuit (Figure 5) which stops the sweep second hand 33 (Figure 2) of the clocks I6 when any one of the relays 86, 81 and 89 is opened.

The circuits 23, 24, and 2S are similar, and only the circuit 23 will be described in detail. Corresponding parts of the circuits 24 and 26 have been indicated with the same numbers as the parts of the circuit 23, but the letter a has been added t0 designations of parts of the cir# @uit 24 and the letter b has been added to the designations of parts of the circuit 26.

The circuit 23 includes photoelectrlc cells |815. Each of the @eus |85 has associated with ita suitf able circuit which may be similar to the circuit associated with each of the cells i8 in the circuit I1. Opposite sides ofY the circuit of each cell |85V are connected to the main power leads I0 and I2. Light beams for the cells |85 are provided by lamps I which are mounted across the main power leads and I2. A plate lead |81 attached to the circuit of each of the cells |85 can provide a current which is changed when the light beam u; one or the eens ist is breken. The lead |81 is attached to a side of the coil of the lrelay as. 'ijhe other. side of nie ecu of, the relay s 's is ooeneoted, through e normally elooe'drelay |88 to the mein. power .line lo When, the boom between one of the lamps |86 and one of the cells |215r broken, the relay 8G maybeV actuatedv if therelay |88 is closed.

"lloe relay le. moy be of the latch, type and, moy v closed Vleaf.` It is the normally closed leaf which the relay 86 is actuated.` The lead-|89 is attached to a side of a lamp |9|, which, if desired, may be mounted at the one-eighth4 mile post. The other side of thelamp|9| is attached tothe main power lead I0, andthe lamp |9| may be lighted when the `relay 86is actuated.

The `relay |88 providesga means iorpreventing` premature actuation of the relay` 86 in the event that a horse balks `at or near the one-eighthmile post.. A push button |92 is provided to actuate the relay |88. One side ofthe push button "|92 is attached to the main powerlead |2. The other side of the lpush 4button |92 is attached to aside ofthe `coil of` the relay |88. )The other `side `i the coil of therelay |88is attachedtc the main powerlead-IU. When the push button,` |92 is closed, the relay |88 is. opened to sever the connectionbetween lthe main` power` lead I6 and the coil of.the`relay 86. `Thus, the relay 86 `cannot be actuated byfa horse passing between the4 lamps `|86 and the cells |85 if the pushbutton |92 is closed.

'After horses have passed the one-eighth miler post, thelamp |9| may be left burning andthe sweepsecond hand 33 `may remain stoppedia sufiicient time for it to be observed Then a re,-` lease button |93 maybe pushed to energize a releasecoil |94 for release vof the relay 86'. One side ofthe push button |93 is attached to the main power `lead ||l` and the other 4side of the push button V|93 is attached to a side of the coil |94. The

Y otherside Aof the coil |94 is attached to the main power lead |2. When the push button is closed, the coil |94 may be energized to release the relay 86 to extinguish the lamp |9| and reset the sweep second hands 33.

The lamps |86 and cells |85 `may be arranged in vertical fbanks on opposite sides ofthe track (Figure 3) with aj lamp |86opposite each cell |85 to define a series of vertically spaced beams across the track |25. Ifdesired, additional lamps and cells may be added to ensure a beam at the height of a horses nose.

At the quarter-mile post, the circuit 24 serves 'asimilarpurpose When horses pass the quartermile post, they can break a beam of light between lamps |86a and cells |8541 to cause actuation of the lrelay 89. Actuation of the` relay 89 halts a'second hand 33 of each of the .clocksfli` and also lights the lamp |9|a to indicate that the second hands 33 have been stopped to indicate time at the quarter mile post. Y

At the three-eighths mile post, the circuit`26 can operate in a similar manner to stop the sweep second hands 33 of the clocks I6 and light a lamp |9|.b for indicating that the time shown .bythe second hands is for the three-eighths of a mile.

The lamps |9| |9|a, and |9|bmay be located at or near the one-eighth, one-quarter, and three-eighths mile posts, as shown, or may be located at any other point desired to identify the location for which time is recorded by the sweep second hands 33. The circuits 23, 24, and 26 operate wholly independently of the main clock circuit and control only the sweep second hands 33 of the clocks |6. Thus, even if a mistake is made and one of the relays 86, 81, and 89 is not properly reset, the timing of the .entire race can be accurate. i

afnameY Operation, of the-deviceforltimingaw t `When a one mile race is tobe timed, the selec; tor switch I3 may be centrally positionedto light the signal lamp39a, to close the relay 49`, ja"nd to energize the circuit 2|.` Y If any of the, lam |9|, |9|a, and I9 b is lighted, the appropriate ref4 lease buttons |93, l93a,'and |931) may be pushed; i

tol releasethe relays 86,f81,`and 89.` The push button` ||2 "may be pushed to reset the clocks |6`.` and the start release push buttonp |09, iinishre-4 lease push button"||l1,` and'gate vreleasepush button ||6` may be pushed toreleasej the relays 1|, 13, 56, and 62, andthe switch y94 may begdisfl connected toreleasefthe` thermal time delay're'-f lay |0|;A

The mechanism then ready for the start-15015` al mile race.` `At the start ofthe race, the truclgfV |26v (Figure 3,) may precede the horses |28 acrosfs the starting line |32. As the truck intercepts the beam of light between the lamp 53 and th'e'celll 5|, the relay 56 closeszilfigure l). Themwhen the 'starting gate |21 crosses the starting line |32`, the relay 62 opens to permit the relay 64 to c1ose i Thereafter, when the first horse passesthe, iinish line |32, the relay `1|` is actuated to start the, clocks ,i6 and to initiate the operation of the time .delay relay 11. VAn appropriate time iiiteryaly after the start of the race, the relay 11 closes to permit actuation of the relay 12 the next time the horses pass the finish line. If a horse balks or remains at or near the' starting line an unusually long time so that it may cross thenish line after :closing of the time delayvrelay 11 but before the horses have gone aroundthe track for` the rst time, the balk push button |2| maygbxe closed to prevent premature activation ofthe reflay12 before the horses can reach the finish4 line` for the second time.'

When the horses pass the one-eighth milepost,` therelay 86 is actuated to stop the sweep second `harids33of `the clocks I5 and to light the lla'mp` |9|.` The sweep second hands indicate the .time required Aby the horses4 to` travel the 'one-eighth mile, and the lamp |9| serves to indicate that the time shown by the sweep second hands is for the one-eighth mile.` `The sweep second hands 33 4may remain stopped and the lamp 9| may remain lighted as the horses proceed from the` one-eighth mile post toward the one-quarter mile, post for a suiiicient time to permit ready observa tion.` Then,` before the horsesreach the .onequarter mile post, the one-eighth `mile Arelease push button |93 may be closed to releasefthe relay 66 and complete the circuits required'to. ener--V gize the leads and 8| causing thesweep sec. ond` hands 33 to realign with the second hands 32 (Figure 2) of the clocks I6.y Then, Whenthe i horses reach `the one-quarter mile post, the relay 89 may be actuated to light the `lamp |9|a; and again break the circuit controlling the sweep Hsec.-l ond hands 33 of the clocks |6 stoppingthe sweep, second hands. If a balling horse remains at or near the one-eighth mile post an unusually long` second time, the thermal time delay relay 11 may have time to close to connect one side of thefcoil' l of there'l'ay through: the lead @dto themain power lead l2. When th'ehorses pass the nish lineiior the second time, the relay 12. can opcrate yto light the lamp' di! and ,stop .the sweep second".` hands 3 3 or" the, clocks lil. After the horses'pass''theV finish line forthe second time bfi'tbefer'e the horsesreach the one-eighth mile postier the. second Atirne,theswitch Sli may be connected to, release the relay l2, extinguishing' vthe lamps? and reenergizing the. sweep secondci'rcuitllead's Sil and` 8|, and to initiate. operation of the thermalv time delay? relay5 lill ,Thereaft'el1theoperation atthel one-eighth,

onelquarterf, -aridthree-eighth. mile posts as the horses passfor the second time repeats the operation during the first time around the track.`

Before the horses can pass the nish line for thev thirdi and; last time, the thermal time delay lrelay |E|Y has sufficient time to operat'efto permit l energizing of thecoil of the relay 1.3. When the.

first horse passes `the nish line. for the third timalthe. relayfl canfclose tolight the illuminatedrnish sign E63 and to halt allthe hands of thev clock-s Iiiv indicating the time for-the mile .In theeventa horse vballes near the starting line. fora suicienttirne to, permit operation of Jthe. time delay relay lill, the balk push button |2.|.`may` be closed to prevent premature opera-y and |01 may be pushed to releasethe relays |54,

|4|.`, 41, and 13, and the switch 955 may be reset tti-release the thermal time delayrelay IUI.

The mechanism is then ready for timing the start of a nine-sixteenths mile race. As the truck intercepts the beam of light between the lamp |38 and the cell itl, the relay MI closes. Then, when the starting gate |21 crosses the starting line |6|, the relay l-il is opened to permit the relay |49 to close. Thereafter, whenthe rst horse passes the finish line |32, the relay 54 may be actuated to start the clocks IB and t'o initiate the operation of the thermal time delay relay Hi Only after the horsesl have passed the nish line forthe first time does the relay mi close to permit energizing of the relay i3. Operation asv the horses pass-the various fractional mile posts' is the same as for ainile race. When the horses pass the finish line for the second time, the relay 13A is actuated to halt the clocks It and to light the illuminated finish sign E3 in the same inanner as for-1a mile race, f y

' @perotionof the device for timing a mile and one-siteenth race Prior to the start of a mile and one-sixteenth race, therelease buttons and switch gli are operated, .as prior to a nine-siXteenths mile race, to release the various relays and reset the clocks. In

' addition', the release push button i522 may be closed. momentarily to release the relay |18.

- The selector switch i3 is positioned to the right. to light the signal lamp 39h, to close the relay |15, and to energize the circuit 22. The

operation of thevrelays. IM. and lli?v during; pas:- sageoff the truck, |26. and? the rstartingl gate |21' bythe starting linetiiis the same as for the nine-sixteenths mile race. After the starting gate |21."- has passed the starting line Uil', when a` horse' crosses the'startingline, 'the relai7 -l'l-B'may beactuated `tostart theclocksv 2h65 and to initiate theoperat'ion of the thermal time delay relay 11.

After the horses havepassed the finish line for y the first time, the operation ofthedevice follows: 'the sequence set forth above for a one mile race..

time being recordedfatthe fractional mile posts by thesweepsecond hands l'fofthe clocks I6 and"A the clocksi being stopped andfthe' sign. lite-being lighted kat the finishl of the race; f

- Conclusion willlbev apparent, the timing device. makes it possibley forj'the time at eachv ofgseveral points about the track to be shown where readilyk visible to a largenumber of.` persons Viewing a` racewhile the race is in progress. The timing isautomatic'an'd' may beffully accurate. No human. factorr enters the timing, andthe timing 'may be` muchmore accurate than is possible with manually operated stop Watches.

The use of the time delay relays makesitposf.

sible to. record the time'of passage by the finish line at each of severalf times; at which horses pas'sthe nnish line. The time. delay relays permit the timing relay 'l2 andthe nishrelay 1.3. t0 be actuated only 'after horses. have had time. to The delayv permitsv horses.-

pass the iinish. line` which follow theA first horse to pass `the finish line without. alfecting the relays. The various balk switches are provided for use ordinarily only sixteenth race makes it possible to time longer races with the device. For example, ifamile and a half; race. were. to. be timed, horses could be started' as'for a mile race, but the horses could be permitted to pass the finish line three times before the switch 9.4i is closed. When a race of more than amile and one-sixteenth is to be timed, y

the switch gli' may be in two parts, one of which may be a push button for energizing the release coil 99' to release the relay 18, while the other is a single throw switch for initiating the operation of the time delay relay |0|. For long races, the' time delay relay' |ll| may be started only after the horses pass the finish line for the last time prior to the iinish of the race, while the release coil 99 may be energized each time the horses pass'the nish` line for resetting the second hands 33 after the horses pass the finish line.

^ The circuits 2l! and 22 permit timing of' a race -which starts at a line other than the iinish line. In the event that races were to be started at additional points, additional similar circuits may be added for use at starts at the additional points.

The device has been described particularly with reference to the timing of races for nine-six teenths mile, one mile, and a mile and one-sixteenth on a half mile track. It will be apparent that the device may readily be adapted for timing races of other lengths and on tracks of various sizes.

` The device has been described particularly for use with races in which a starting gate precedes horses along the track at the start of a race, but the device can also be used with equal effect for timing races in which horses are started in other manners.y If no starting gate is to precede the horses at a start, the circuits 2| vand 22 may be omittedfor the relaysof thecircuits 2| and 22 may be left closed and the clocks may be started as the iirst horse crosses the starting line.

Many variations are possible in the construction `of the device, and the invention is not intended to be limited by the foregoing detailed de `scription and the drawings but only as set out in the appended claims.

What is claimed is:

1. 'IheA combination of a device for timing `a race on a continuous track in which objects circle the track at least once and mechanism for energizing the timing device at a start of 'a race after starting apparatus crosses a starting line, the mechanismifor energizing the timing device comprising, a first and a second photo-electric device, means for directing a separate light beam into each device, a rst relay means operable when the light beam to the first photolelectric device is broken, a second relay means for operation when the second light beam strikes said secm ond photo-electric device, said second` relay means being operable after operation of said nrst relay means to energize the timing device, `the light beam to said second photo-electric device crossing the track adjacent the starting line, the light beam to the iirst photo-electric device being at least as` far along the track in thedirection o i the race as the beam to the second photo-electric device. the distance along the track between the light beams being less than the length `of the starting apparatusywherebyme flrstrelay means is operated as the starting apparatus starts to cross the light beam tofthe first photoelectric device, and the second relay is operated thereafter as the starting apparatus .iinishes crossing the light beam to the second photo electric device to energize the timing device, the timing device comprising, a time indicating means, means for starting the time `indicating means when a first object passes the starting line after operation of the second relay means, a time delay relay startable When said time indicating means is started, said time delay relay operating a sunicient time after the first object passes the starting line to permit all objects in the race to clear a nnish line for an initial time before operation of said time delay relay, and means at the finish line for stopping the time indicating means, the means for stepping the time indicating means being operable after operation of the time delay relay as objects pass the finish line a iinal time. i

2. In a device for timing a race on a continuous track in which objects circle a track a plurality of times and Where a starting line and a finish line coincide, the combination of a photo-electric device, means for directing a light beam into said photo-electric device, said beam being at the starting line for the race, a first relay operable When the light beam is broken, a first time indicating means operable throughout the race and a second time indicating means arrestable at selected times during theV race, means for starting both said time indicating means upon operation of said nrst relay, a rst time delay relay, said iirst time delay relay being started upon operation of said iirst relay, said first time delay relay operating a sufiicient time after operation of said rst relay to permit all objects in the race to clear the starting line before the 1` first time delay `relay operates, va second relay operable when the light beam is broken after operation of the time delay relay to stop the arrestable time indicating means without stopping the iirst time indicating means, a second time delay relay, manually operable means forl restoring said arrestable time indicating means in line with the first time indicating means: and for starting said second time delay relay,a third relay operable When the light beam is broken; said third relay being operable after operation of the second time delay relay, the first time indicating n'iearis being stopped upon operaticn of said third relay to indicate the time of the race,

a plurality of cooperating light beams andphotoelectric devices'dispcsed` at spaced lines across the track, a plurality or intermediate latch type timing relays, one for each Alineyeach of said I intermediate timing relays being operable as one of the light beams is broken to stop thearrestrline With the rst time indicating means.

3. In a device for timing arace ona con-vl tinuous track in which race objectscircleV the,

track a plurality of times and Where` a starting; line `and a finish line coincide, the-.combination of Va photo-electric device, meansiordirecting` a light beam into said.photo-electricidevlce, said beam being at the starting line for lthe race, am rst relay operable' whenr the :light bearngis broken, a nrst time indicating means op'erabley throughout the race and a second `time indicating; means arrestable at selectedvtimes; during-*thai f race, means for starting both saidptime ind cating means upon operation or"` said relay.,y

nrst time delay relay, said' first `tirneldelay-iyrelay being started upon operation ofsaid,firstrelaygd saidfiirst time delay relay operating a suiiicienty 4 time after operation of said iirst relay to permit all objects in the race to clear the starting line` stopping the first time indicating means, a second time delay relay, manually operable means for restoring said arrestable time indicating` means in line with the first time indicating means and for starting said second time delay relay, a third relay operable when the light beam is broken, said third relay being operable after` operation of the second time delay relay, the rst time indicating means being stopped upon operation of said third relay to indicate the time of the race, a plurality of cooperating light beams and photo-electric devices disposed at spaced lines across the track, a plurality of intermediate latch type timing relays, one for each line, each of said intermediate timing relays being operable as one of the light beams is broken to stop the arrestable time indicating means, manually operated means for resetting said intermediate timing relays and restoring said arrestable time indicating means in line with the first time indicating means, and manually operated means for preventing premature operation of said relays. l

4. In a device for timing a race on a ccntinuous track in which objects circle the track at least once, the combination of a first photoelectric device, means for directing a first light beam into said photo-electric device, said beam being .atyastarting line..;for.-thez race.. a .rsta .ree lay r@operable Whemtlie .gfrstzl beam pis; broken, a rst; time.zindicatingmeans.. operable.:throngiront. A thexrace.- and as second.; timegindicating; means.: arrestablef-atf selected time: during: the. race, 5 means 1 for starting b0th;: said indicating :means upon operationzzoffsaid;firstzrelay; atime.l delay relay; said-time delay? relay i.being started upont operation. ofifsaid jrst relay; saidztime. delay relay operating axesufiicient time after'operation;of. said 10 rst;` relay to. permitall objects in. the.: .race to clear: a .v iinish:` line for.` an.` initial. time. before said'V timedelay relay. operatesaseeond photo-electrick device, meansfor'directinga second beam of, lightinto said: second "photo-electric, device, 15:.

saidLsecond-.beam of vlight .beingvat-the finish line. a Asecond "relay yoperable when; the-v second light beamis vbroken after loperation of the. time delay relay-to .stop `the 1 rst time indicating. means f to indicate thetime of 'tlierace, aU plurality of' (so-205i operating 'photo-electric 'devicesf andv lightrbeams acrossxthe track disposedv at spaced linesl about` the=track, ax plurality of latch'ltype intermediate timing4 relays;- one for-'each line,k each' of' said' intermediate `timing Yrelays beingoperable as `one 25.'.

otheflight beams is broken to1stoprthe arrestable time indicatingmeans; and means fon-resetting said intermediate timing:` relays fandfrestoring said arrestable timev indicating means in' line'A with.l the rst time indicatingmeans;

5.' Inzadevioe forf timing ai race onu-a continuousatrack'in which objectscircle thegtrack'at* least once; the-combination off'a -fi'rstl photo-elec. tric' device, means for'directingfazrst vligl'it beam.-

into'v said photoeel'ectric device;- said 'beamfbeingr 35` 'ati aistarting line .-forfthe lracei. a first 0relay oper-wM indicating meanswoperable: throughout= the race;

startingiboth said; indicating means.l upon: oper-` finish line; foryan .initialtimebefore.said .timeidee lay relay operates.;A ali-second..photofelectric. de?,

vice, means *fordirecting a.secondbeann4 of light,`

intoA said. second photo-electric device.; said, sec:-

ond .beam of..light beinggI at n.the finish: line,l a see.-N ond.; relay;` operablej when. .thesecond:l lighti beam is broken after. operation-.owne timeede-layfrelay;

to stop the rst time indicatinggmeans. to\.in.

dicate the time of the race,arpl urality oleo:- operating photo-eleetric devices. :andiglm-beams across :thai-.track .disposed at. spaced` lines about thetrackia `plurality of;.intermediateelatchetypea timing ,relaysi. one; for.; each;.1ine.1f, each... of. :saide intermediate..l timingf. relays@beingoperable'as:Av one;` ofzitheglight. .beamsf s..broken.-. to.-.stop4 the;

arrestableV time indicating; means, manually operated means. ior.-v resettingy said f intermediate timing L relays. and restoringa` said arrestabla time; indicatingmeansinline with. the rstf timein-'I- dicatingmeans,v andv manually operated means.;

for.l preventing premature-operation. of.- said..vr.e.. lays-.

IRA.. Mi, MALOTFI'.l

HERBERT R., CRAWEORD...

BJEIERENCIEISz CITEDI The A following' references4 areaoff. recordy Ain the: lea cixthis: patentci..

UNITED STATES BATENTS Number.' Name.. Date..-

2166,09.0 Cooper ...m .,.D.ec... 1.3,.; 1938 .7 2,140,387. Juchter .......Jlnly 11, 193.9.` 2,255,266; Moorefleld. --..Sep.t... 9,- 19.41 351307.` 

